CODEWITHSUNDEEP
flutterdartpopup
LWB
LWB

Reputation: 512

How do you dismiss an AlertDialog and run some code?

The problem

So I have an AlertDialog in my flutter app, and it has two buttons: yes and no. No matter which button is clicked, I want the pop up to be dismissed, however I also want to run some code if yes is pressed.

My code

showDialog(context: context, builder: (_) => AlertDialog(
                            title: Text("Delete?"),
                            content: Text("Do you want to delete this task?"),
                            actions: [
                              MaterialButton(child: Text("Yes"),onPressed: () => Navigator.pop(context)),
                              MaterialButton(child: Text("No"), onPressed: () => Navigator.pop(context)),
                            ],
                          ), barrierDismissible: true);

I would appreciate anyone's help

Upvotes: 1

Views: 59

Answers (3)

Ibrahim Ali
Ibrahim Ali

Reputation: 2511

Try this

actions: [
     MaterialButton(child: Text("Yes"),onPressed: () {
        //do something
        Navigator.pop(context))
     }),
     MaterialButton(child: Text("No"), onPressed: () => Navigator.pop(context)),
],

Upvotes: 1

Guillaume Roux
Guillaume Roux

Reputation: 7328

You can simply add a value when you call your Navigator.pop which will be returned through the Future from showDialog. Here is a code sample:

showDialog<bool>(
   context: context,
   builder: (_) => AlertDialog(
      title: Text("Delete?"),
      content: Text("Do you want to delete this task?"),
      actions: [
         MaterialButton(child: Text("Yes"),onPressed: () => Navigator.pop(context, true)),
         MaterialButton(child: Text("No"), onPressed: () => Navigator.pop(context, false)),
      ],
   ),
   barrierDismissible: true,
).then((bool hasTappedOnYes) {
   if (hasTappedOnYes) {}
   else {}
});

Upvotes: 1

Erik Lange
Erik Lange

Reputation: 53

This is the way I've solved the same issue. I'm not sure if there is a cleaner way of doing it

bool yesPressed = false;

showDialog(
        context: context,
        builder: (_) => AlertDialog(
              title: Text("Delete?"),
              content: Text("Do you want to delete this task?"),
              actions: [
                MaterialButton(
                    child: Text("Yes"),
                    onPressed: () {
                      yesPressed = true;
                      Navigator.pop(context);
                    }),
                MaterialButton(
                    child: Text("No"),
                    onPressed: () => Navigator.pop(context)),
              ],
            ),
        barrierDismissible: true)
    .then((value) {
  if (yesPressed) {
    // Do something
  }
});

Upvotes: 1

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